


//
//  UIColor+Hex.m
//  DatangLife
//
//  Created by 娜 on 2018/4/23.
//  Copyright © 2018年 DatangLife. All rights reserved.
//

#import "UIColor+Hex.h"

@implementation UIColor (Hex)
+(UIColor *)colorWithHexString:(NSString *)color{
    NSString *cString = [[color stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];//去掉所有的空格whitespaceAndNewlineCharacterSet
    if ([cString length] < 6) {
        return [UIColor clearColor];
    }
    if ([cString hasPrefix:@"0X"]) {
        cString = [cString substringFromIndex:2];
    }
    if ([cString hasPrefix:@"#"]) {
        cString = [cString substringFromIndex:1];
    }
    if ([cString length] != 6) {
        return [UIColor clearColor];
    }
    
    NSRange range;
    range.location = 0;
    range.length = 2;
    
    //R
    NSString *rString = [cString substringWithRange:range];
    
    //G
    range.location = 2;
    NSString *gString = [cString substringWithRange:range];
    
    //B
    range.location = 4;
    NSString *bString = [cString substringWithRange:range];
    
    //scan Values
    unsigned int r,g,b;
    [[NSScanner scannerWithString:rString] scanHexInt:&r];
    [[NSScanner scannerWithString:gString] scanHexInt:&g];
    [[NSScanner scannerWithString:bString] scanHexInt:&b];
    
    return [UIColor colorWithRed:((float) r/ 255.0f) green:((float) g/ 255.0f) blue:((float) b/ 255.0f) alpha:1.0f];
}
@end
